摘要
近自然森林经营的基本理念是培育接近自然状态的森林,经营目标是恒续不断地发挥森林多种功能,基本方法与措施是单株作业和天然更新,参照对象是类似立地条件上的自然度近可能高的天然林,参照树种是天然林乔木层中的主、次要树种,目标树密度依据现有林分结构和林木生长发育情况而确定,确定目标直径的原则是"利益最大化",逐步疏开林冠,补植特殊目标树,将促使人工纯林稳步进入天然更新程序。
The basic idea of near natural forest management is to cultivate a near natural forest. The management objec- tive is to constantly give play of the multiple functions of forest. The basic methods and issues are single plant operation and natural update. The reference object is the natural forest that has similar site condition and high natural degree. The reference species are the major and minor species in the tree layer of the natural forest. The target tree density is deter- mined according to the existing stand structure and growth condition of trees. “Profit maximization” is the principle of de- termining the target diameter. The crown canopy will be gradually dispersed, special target trees will be replanted, thus the artificial forest will steadily enter the natural update program.
出处
《湖南林业科技》
2014年第5期73-75,共3页
Hunan Forestry Science & Technology
基金
中德财政合作湖南小农户造林项目(BMZ-2002 65 702)
关键词
近自然森林
目标树
天然更新
near natural forest
target tree
natural update
